12 Questions
What is the primary responsibility of a collection?
Efficient data storage
Why should traversal algorithms not be added to a collection class?
Because they blur the primary responsibility of the collection
What problem arises when client code is coupled to specific collection classes?
The code becomes tightly coupled to the collection implementation
What pattern would be suitable for decoupling client code from specific collection classes?
Bridge
What is the main goal of the Iterator pattern?
To provide a way to traverse a collection without exposing its underlying implementation
What pattern would be suitable for providing a way to access elements of a collection without exposing its underlying implementation?
Iterator
What is a potential issue with including traversal algorithms in a collection class?
It blurs the primary responsibility of the collection class.
Why might client code be coupled to specific collection classes?
Because collections provide different ways of accessing their elements.
What is the consequence of adding more traversal algorithms to a collection class?
It makes the collection class more complex.
What is a characteristic of a collection based on a complex data structure like a tree?
It requires a specific traversal algorithm.
Why might a breadth-first traversal algorithm not be suitable for a specific application?
Because it is tailored for a different application.
What is a potential consequence of a collection class providing multiple traversal algorithms?
It makes the collection class more difficult to maintain.
Study Notes
Collections in Programming
- A collection is a container for a group of objects, storing elements in simple lists or complex data structures like stacks, trees, and graphs.
- Collections must provide a way to access their elements for other code to use them.
- Accessing elements in a collection involves traversing them sequentially without repeating any elements.
Traversal Algorithms
- Traversal algorithms are needed to access elements in complex data structures like trees.
- Different traversal algorithms are required for different scenarios, such as depth-first, breadth-first, and random access.
- Adding multiple traversal algorithms to a collection class can blur its primary responsibility of efficient data storage.
- Some algorithms may be specific to certain applications, making it unsuitable to include them in a generic collection class.
Collection Classes and Client Code
- Client code may not care about how collections store their elements, but it must couple with specific collection classes due to varying access methods.
- This coupling limits the flexibility of client code to work with various collections.
Collections in Programming
- A collection is a container for a group of objects, storing elements in simple lists or complex data structures like stacks, trees, and graphs.
- Collections must provide a way to access their elements for other code to use them.
- Accessing elements in a collection involves traversing them sequentially without repeating any elements.
Traversal Algorithms
- Traversal algorithms are needed to access elements in complex data structures like trees.
- Different traversal algorithms are required for different scenarios, such as depth-first, breadth-first, and random access.
- Adding multiple traversal algorithms to a collection class can blur its primary responsibility of efficient data storage.
- Some algorithms may be specific to certain applications, making it unsuitable to include them in a generic collection class.
Collection Classes and Client Code
- Client code may not care about how collections store their elements, but it must couple with specific collection classes due to varying access methods.
- This coupling limits the flexibility of client code to work with various collections.
Learn about collections in programming, including their structure and how they store elements. Discover how collections provide access to their elements for use in other code.
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